CVE-2023-46243: Xwiki platform oldcore Remote Code Execution Vulnerability

HIGH
Advisory Identifier: GHSA-g2qq-c5j9-5w5w
Share
CVSS 8.8
CWE-94
Published
Advisory Summary

CVE-2023-46243 is a HIGH (CVSS 8.8) remote code execution vulnerability (CWE-94: Improper Control of Generation of Code ('Code Injection')) affecting Xwiki platform oldcore libraries in the Maven ecosystem. The issue involves xwiki platform vulnerable to privilege escalation and remote code execution via the edit action. Remediation is available by upgrading affected packages to version 15.2-rc-1, 14.10.6.

CVE-2023-46243 at a Glance

CVE Identifier CVE-2023-46243
GHSA Identifier GHSA-g2qq-c5j9-5w5w
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected Product Xwiki platform oldcore
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2023-46243

To remediate this vulnerability, upgrade all affected Xwiki platform oldcore dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.xwiki.platform:xwiki-platform-oldcore fixed: 15.2-rc-1 
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-oldcore</artifactId>
    <version>15.2-rc-1</version>
</dependency>
org.xwiki.platform:xwiki-platform-oldcore fixed: 14.10.6 
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-oldcore</artifactId>
    <version>14.10.6</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.xwiki.platform

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2023-46243, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.xwiki.platform

Analyze the terminal output to locate any version of Xwiki platform oldcore in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 15.2-rc-1), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.xwiki.platform command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-94: Improper Control of Generation of Code ('Code Injection'), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. In Xwiki platform oldcore, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact In XWiki Platform, it's possible for a user to execute any content with the right of an existing document's content author, provided the user have edit right on it. The reason for this is that the edit action sets the content without modifying the content author. To reproduce: * Log in as a user without programming or script right. * Open the URL `<xwiki-host>/xwiki/bin/edit/<document>/?content=%7B%7Bgroovy%7D%7Dprintln%28%22Hello+from+Groovy%21%22%29%7B%7B%2Fgroovy%7D%7D&xpage=view`, where `<xwiki-host>` is the URL of your XWiki installation and `<document>` is the path to a document whose content author has programming right (or script right) and on which the current user has edit right. The text "Hello from Groovy!" is displayed in the page content, showing that the Groovy macro has been executed, which should not be the case for a user without programming right. ### Patches This has been patched in XWiki 14.10.6 and 15.2RC1. ### Workarounds There are no known workarounds for it. ### References * https://jira.xwiki.org/browse/XWIKI-20385 * https://github.com/xwiki/xwiki-platform/commit/a0e6ca083b36be6f183b9af33ae735c1e02010f4 ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki.org](https://jira.xwiki.org/) * Email us at [Security Mailing List](mailto:security@xwiki.org)

CVE-2023-46243 Affected Xwiki platform oldcore Versions

2 component(s)
Fixed Versions:
15.2-rc-114.10.6
Product / Package Ecosystem Affected Versions Fixed Version
org.xwiki.platform:xwiki-platform-oldcore
maven/org.xwiki.platform/xwiki-platform-oldcore
Maven
≥ 15.0
< 15.2-rc-1
15.2-rc-1
org.xwiki.platform:xwiki-platform-oldcore
maven/org.xwiki.platform/xwiki-platform-oldcore
Maven
≥ 1.0
< 14.10.6
14.10.6

References

GitHub Advisory / Wiki ADVISORY
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-g2qq-c5j9-5w5w
NVD — CVE-2023-46243 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-46243
Security Fix Commit FIX COMMIT
https://github.com/xwiki/xwiki-platform/commit/a0e6ca083b36be6f183b9af33ae735c1e02010f4
Xwiki platform oldcore Source Repository REPOSITORY
https://github.com/xwiki/xwiki-platform
jira.xwiki.org/browse/xwiki-20385 WEB
https://jira.xwiki.org/browse/XWIKI-20385

Frequently Asked Questions

What is CVE-2023-46243?
CVE-2023-46243 is a security vulnerability in Xwiki platform oldcore involving XWiki Platform vulnerable to privilege escalation and remote code execution via the edit action under CWE-94: Improper Control of Generation of Code ('Code Injection').
Which Xwiki platform oldcore versions are affected?
Affected versions include releases prior to 15.2-rc-1, 14.10.6 across affected packages: org.xwiki.platform:xwiki-platform-oldcore.
What version fixes CVE-2023-46243?
Upgrading to 15.2-rc-1, 14.10.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is xwiki-platform-oldcore affected?
Yes, org.xwiki.platform:xwiki-platform-oldcore is affected in releases prior to 15.2-rc-1, 14.10.6. Upgrade your dependency to 15.2-rc-1, 14.10.6 or later.
What is the CVSS score of CVE-2023-46243?
CVE-2023-46243 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2023-46243?
CVE-2023-46243 is classified under CWE-94: Improper Control of Generation of Code ('Code Injection') (The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.).
How can I check Maven dependencies for CVE-2023-46243?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.xwiki.platform'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-g2qq-c5j9-5w5w",
  "modified" : "2023-11-15T18:32:54Z",
  "published" : "2023-11-07T23:02:57Z",
  "aliases" : [ "CVE-2023-46243" ],
  "summary" : "XWiki Platform vulnerable to privilege escalation and remote code execution via the edit action",
  "details" : "### Impact\n\nIn XWiki Platform, it's possible for a user to execute any content with the right of an existing document's content author, provided the user have edit right on it. The reason for this is that the edit action sets the content without modifying the content author.\n\nTo reproduce:\n* Log in as a user without programming or script right.\n* Open the URL `<xwiki-host>/xwiki/bin/edit/<document>/?content=%7B%7Bgroovy%7D%7Dprintln%28%22Hello+from+Groovy%21%22%29%7B%7B%2Fgroovy%7D%7D&xpage=view`, where `<xwiki-host>` is the URL of your XWiki installation and `<document>` is the path to a document whose content author has programming right (or script right) and on which the current user has edit right.\n\nThe text \"Hello from Groovy!\" is displayed in the page content, showing that the Groovy macro has been executed, which should not be the case for a user without programming right.\n\n### Patches\n\nThis has been patched in XWiki 14.10.6 and 15.2RC1.\n\n### Workarounds\n\nThere are no known workarounds for it.\n\n### References\n\n* https://jira.xwiki.org/browse/XWIKI-20385\n* https://github.com/xwiki/xwiki-platform/commit/a0e6ca083b36be6f183b9af33ae735c1e02010f4\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n* Email us at [Security Mailing List](mailto:security@xwiki.org)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-oldcore"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "15.0"
      }, {
        "fixed" : "15.2-rc-1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-oldcore"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0"
      }, {
        "fixed" : "14.10.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-g2qq-c5j9-5w5w"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-46243"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/commit/a0e6ca083b36be6f183b9af33ae735c1e02010f4"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/xwiki/xwiki-platform"
  }, {
    "type" : "WEB",
    "url" : "https://jira.xwiki.org/browse/XWIKI-20385"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-94" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-11-07T23:02:57Z",
    "nvd_published_at" : "2023-11-07T20:15:08Z"
  }
}